LATH YBUPIITIIALMU9. 81 



77. Lathyrophthalmus myiatropinus, Speiser (1910). 



A very peculiar species, easily recognisable in both sexes by the 

 pattern on the thorax and fourth abdominal segment. 



Dr. Speiser described the male from Kilimandjaro. The female 

 is verv similar; the middle of the frons is clothed with grey 

 pollen, interrupted by a transverse moderately shining median band; 

 thorax with the characteristic pattern ; second and third abdo- 

 minal segments with broad black hind borders, that on the third 

 being the broader of the two, fourth segment entirely black, with 

 the peculiar pattern seen in the male. 



Abdomen of the male more conical and narrower behind than 

 in the allied species ; genitalia rounded, black, with some black 

 appendages below, but the fourth ventral segment is merely cleft, 

 without the bilobate appendage exhibited by the preceding species. 



A male from Durban, Natal, 19. iv. 1892 (F. JIuir) ; another 

 from British East Africa. M'bagori's Village, edge of Kenia Forest, 

 5,000 ft., 12.ii. 1911 (T. J. Anderson} ; and another from Yak 

 Bridge, N. Kavirondo, Br. E. Africa, 24. viii. 1911, "on mule" 

 ( C. W. Wood ho use). 



78. Lathyrophthalmus gymuops, sp. n. 



J . Length of the body 12 mm. 



Closely allied to the preceding, but distinguished from it and 

 from the other bare-eyed species by its hind femora being entirely 

 black. 



Head black, dark grey pollinose ; eyes reddish, bare, with many 

 round black spots, less numerous and mostly isolated on the lower 

 half, but verv numerous and confluent on the upper half ; in the 

 male the eyes are united for a very short distance, shorter than 

 half the length of the vertical triangle ; occipital border with long 

 grey hairs above ; vertical triangle black-haired ; frontal triangle 

 narrowly black and shining immediately above the antenna?, black 

 pilose higher up ; face very much produced below, conical, with a 

 small black median tubercle and a black border to the edge of the 

 buccal cavity ; peristoma narrow and shining black, pale-haired 

 beneath ; epistoma with a deep notch in front ; sides of the face 

 clothed with long whitish hair ; frons of the female shining black 

 on the upper fourth, dark grey below, clothed with long and 

 closely-set blackish hair, with a small shining black subtriangular 

 spot above the antennae ; lunula reddish ; antenna short, quite 

 black, the third joint very short and rounded ; arista long, dark 

 reddish, bare ; opening of buccal cavity long and narrow, linear; 

 proboscis black. Thorax moderately shining, black, clothed on the 

 dorsum with rather long grey-fulvous hair, with some black hair 

 intermingled ; pleura greyish, pale-haired ; in the male there ar^ 

 four inconspicuous longitudinal black stripes, which in the female 

 are scarcely noticeable. Scutellum dark yellowish, blackish towards 

 the base, clothed with hair like that on the thorax, with some 



